Thread-cutting device



LSR 7,22@

W. K. POULSN THREAD CUTTING DEVICE www, 25, 11924@ Filed April 8, 192.2l

INVNTOR ATTORNEY WITN ESS:

Patented Nov. E5, i924.

WALTER K. POULSON, OF UPTON, WYOMING.

THREAD-CUTTING DEVICE.

Application filed April 8,

T0 all 'whom t may concern:

Be itv known that l, WALTER K. PoULsoN, a citizen of the United States, residing at Upton, in the county of lVeston and State of lVyoming, have invented new and useful Improvements in Thread-Cutting Devices, of which the following is a speciiication.

This invention relates to a thread cutting device for thimbles, and the object is to provide, in one form of the article, a cutting blade and a guard member acting as a protecting device.

A further object is to provide in another form of the invention, a cutting edge on the lower rolled portion of the thimble, the edge being protected by deflected portion of the metal partly separated from the base of the thimble in forming the blade. y

lilith the foregoing and other objects in view, the invention consists in the novel construction and arrangement of elements described and claimed, it being understood that modifications may be made within the scope of the claim without departing from the spirit .of the invention.

ln the drawings:

Figure 1 is a perspective view of a thimble lwith the improvement applied thereto.

Figure 2 is a fragmentary view, in vertical section, and on an enlarged scale.

Figure 3 is a fragmentary view in vertical section, a portion of the rolled edge and guard being shown in dotted lines.

Figure t is a fragmentary view showing another form.

Figure 5 is a fragmentary view, in vertical section, of the form shown in Figure 4f.

ln carrying out the invention, I employ 1922. Serial No. 550,714.

a thimble 10 `having a lower rolled portion 11. The shield or guard member 12 is formed on the rolled portion, or is soldered thereto, and is spaced from the outer portion or surface ofthe thimble, the adjacent portion of the surface being designated for conn venence 13.

This portion 13 is provided with an opening 14, and the metal being cutaway, or partly cutout, in the formation of the opening, is deflected to form the blade or knife 15, the blade extending directly outward and being positioned behind the guard member'. The cutting edge is designated 16.

In another form of the device, the rolled edge 22 is cutaway in the forni shown in Figure 4, producing an opening approximately triangular in shape and having an entrance portion 23. The portions 24 and 25 project toward each other and are upwardly deflected and the cutting edges 26 may be bevelled as illustrated.

These edges diverge with reference to each other and converge with reference to the lower portion of the slot. The thread engages the cutting edge from either side, according to the convenience of the user of the article.

Having thus described the invention, what is claimed is:

rThe combination with a thimble having a rolled edge including an upward extension, of a cutting element bent outwardly from the wall of the thimble toward said extension and protected thereby, the extension constituting a guard.

In testimony whereof l affix my signature.

l/VALTER K. POULSON. 

